OpenSSH is one of the most popular implementations of SSH used today and available by default in many Linux and Unix-like operating systems.

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9
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5answers
12k views

How to edit known_hosts when several hosts share the same IP and DNS name?

I regularly ssh into a computer which is a dual-boot OS X / Linux computer. The two OS instance do not share the same host key, so they can be seen as two host sharing the same IP and DNS. Let's say ...
7
votes
2answers
3k views

How to make ssh log in as the right user?

I use ssh on a variety of machines, mainly linux. Accounts on these machines vary in naming scheme: if my name is First Last, then I have accounts: first, flast, last_f, lastf, and sometimes I need to ...
12
votes
8answers
41k views

OpenSSH server refuses to accept key authentication

I tried to use public key authentication on my new server, and I came across this problem. $ ssh -v -i .ssh/server 192.168.1.100 OpenSSH_5.6p1, OpenSSL 0.9.8r 8 Feb 2011 debug1: Reading configuration ...
1
vote
1answer
142 views

OpenSSH, FreeBSD screen overwrite when closing application

I installed a fresh FreeBSD 10 on a VM and connected via SSH and I've noticed that whenever i close a program (e.g., htop, top, nano etc) the contents of the session gets overwritten. This doesn't ...
1
vote
1answer
5k views

Cannot successfully configure OpenSSH via CYGWIN in Windows 2008

I need help configuring OpenSSH on Win2008 via CYGWIN! THANKS in advance! I am trying to configure an OpenSSH server on Windows Server 2008 Datacenter via CYGWIN. I have installed and configured ...
2
votes
3answers
23k views

Can't connect with putty to a Linux server

I can't connect with Putty to a Linux box. In the putty log I only get 3 lines and the last line is "Server unexpectedly closed network connection". FTP and ping to the Linux box works. Putty is ...
1
vote
1answer
2k views

Need help tunneling Remote Desktop (RDP) over SSH using OpenSSH

So heres my set up. The picture isn't "Exact" I have modified it, but it gives you an idea. The tools I am using are: PUTTY OpenSSH CYGWIN Remote Desktop VMware vCenter Server Version 5.1.0 ...
0
votes
2answers
54 views

Generate RSAv2 key in OpenSSH format in Windows

I have to generate a key, RSA v2 in OpenSSH format. I am a bit confused. I am trying to generate it using Putty Key Generator. There I see an option SSH2-RSA, SSH1-RSA. So is SSH2-RSA the RSA2 key or ...
0
votes
2answers
290 views

Building OpenSSH for OS X?

I have on OS X 10.5 PowerMac (PowerPC) I use for testing. Apple has abandoned support for it. Others want access to the box for testing, so I need to build and install an updated OpenSSH. I visited ...
0
votes
1answer
1k views

SSH doesn't work on Ubuntu

I am trying to connect to my webserver via ssh but I can't. When I insert the password nothing happens. This is what I see: # ssh username@username.example.com username@username.example.com's ...
70
votes
8answers
150k views

Remove key from known_hosts

I built several virtual machines during the last few weeks. The problem is, the .ssh/known_hosts gives me the Man in the middle warning. This happens because another fingerprint is associated with the ...
21
votes
9answers
36k views

Why does the “password” prompt take forever when I SSH into my Ubuntu 9.05 server?

Answer: It was, in fact, performing reverse DNS resolution. Based on the suggestions below and this article, I added "UseDNS no" to my sshd_config, rebooted ssh, and now the password prompt displays ...
9
votes
3answers
32k views

How to uninstall/reinstall cygwin to use the sshd?

I installed cygwin/sshd without good results. I removed the c:\cygwin directory to reinstall. I removed the sshd Administrator user by hand. I reinstalled the cygwin again, then run the ...
12
votes
6answers
42k views

How to SSH to localhost without password?

EDIT: Putting exactly what was done. I need to SSH to localhost without a password, the usual way of doing it (with public keys) do not work. user@PC:~$ rm -rf .ssh/* user@PC:~$ ssh-keygen -t rsa ...
11
votes
2answers
2k views

How to determine the port allocated on the server for a dynamically bound openssh reverse tunnel?

When creating reverse tunnels on recent versions of OpenSSH a remote port of 0 can be given to bind any available port: -R [bind_address:]port:host:hostport ... If the port argument is ...
4
votes
4answers
8k views

Cygwin sshd did not start due to a logon failure

After a cygwin sshd install, sshd service fails with: Error 1069: The service did not start due to a logon failure I try to give cyg_server standard user and admin access. The error is the same ...
3
votes
4answers
10k views

no version information available (required by /usr/bin/ssh)

I am getting no version information available when making ssh. Openssl verion: sat:~# openssl version OpenSSL 1.0.1f 6 Jan 2014 Here is output of ldd /usr/bin/ssh: /usr/bin/ssh: ...
6
votes
1answer
5k views

PubkeyAcceptedKeyTypes and ssh-dsa key type

I'm trying to test the order in which keys are tried. One of the system's users is using DSA, so I'm trying to test it as an option. I'm getting a Bad key types. $ ssh -vv -p 1522 ...
3
votes
1answer
473 views

Howto force ssh to use a specific private key?

With ssh -i <private key filename> you can instruct ssh to use an extra private key to try authentication. The documentation is not clear on how to explicitly use only that key.
3
votes
2answers
2k views

SSH Constantly Hangs at SSH2_MSG_SERVICE_ACCEPT Received

I'm having problems with SSH. I can't connect to anything; every connection hangs indefinitely at SSH2_MSG_SERVICE_ACCEPT RECEIVED. I'm on OSX 10.6.8. I'm thinking that it's a problem with my SSH ...
2
votes
2answers
3k views

Unable to connect to SSH after generated public key and private key

Can some one help ? I have installed openssh (version OpenSSH_6.8p1) in windows 7 and I have generated the public and private keys, however I'm not able to connect to that SSH. I'm getting an error ...
2
votes
1answer
48 views

OpenSSH server refuses to accept key authentication unless logged into server locally

My server is running Ubuntu-Server and ahs OpenSSH-Server installed on it. I set up the /etc/ssh/sshd_config file to accept and require rsa keys, it looks for keys in the 'AuthorizedKeys ...
2
votes
3answers
1k views

Can only ssh into Ubuntu 12.04 alpha machine when logged into console

I recently installed the latest Ubuntu 12.04 64bit alpha (2?) onto a VMware virtual machine in order to check things out. One strange thing I've encountered is that I can only successfully ssh into ...
1
vote
1answer
105 views

What is the keyword in .ssh/config for tunneling in the background?

In command line option, we can specify -N -f to let it run in the background. How about the identical keywords in .ssh/config? Instead of doing ssh dest -N -f -L 1337:localhost:1337 I would like to ...
0
votes
1answer
183 views

how to start ssh server on iOS?

I can't connect to my iphone via ssh. device is jailbroken and has openssh installed: $ ssh -V OpenSSH 6.7p1, OpenSSL 0.9.8zg 11 Jun 2015 I've found out that for some reason it doesn't have the ...
0
votes
1answer
241 views

Can't ssh to my iphone: ssh_exchange_identification: Connection closed by remote host

I'm trying to establish ssh connection from my laptop(macbookpro) to my iphone. when trying to copy keys from laptop to iphone getting: $ ssh-copy-id -i ~/.ssh/id_rsa.pub mobile@iphone.local ...
0
votes
2answers
505 views

generating keys for SSH

From the Open-SSH Documentation what does username@remotehost mean in the following: *By default the public key is saved in the file ~/.ssh/id_dsa.pub, while ~/.ssh/id_dsa is the private key. Now ...